Solution: Improve the powder storage environment, seal the powder in time to avoid the moisture of the powder; do the maintenance of the powder supply equipment; timely clean the dust on the spray equipment accessories and replace the wear parts. High-quality powder tubes should be used to maintain the same inner diameter; powdered and concentrated gas should be added; water in the air reservoir or air tank should be installed before the high-consumption point. The powder is easily contaminated by external air suspension. After spraying, the surface of the profile is prone to flocculation or shrinkage.
After baking, it affects the smoothness of the surface of the profile. Therefore, the spray booth should adopt sealing measures to prevent the intrusion of pollutants. The residual powder in the trachea should be cleaned and cleaned in time. If it is not used for a long time, it will easily agglomerate, and the powder will easily produce powder spit, which will affect the spraying effect.
In the actual powder coating production, each process must be carefully managed, and the coating defects should be treated as appropriate to avoid repeated occurrence of similar coating defects, so as to reduce the production cost and improve the powder coating quality.